Blockchain technology has revolutionised the tech sector by providing cutting-edge answers to age-old issues. Blockchain provides a number of advantages including enhanced efficiency, security, and transparency as a decentralised, distributed ledger system. In this article, we examine how blockchain is upending the IT sector and what the future may hold for it. I. Introduction A. Definition of blockchain Blockchain is a decentralized, distributed ledger system that records transactions between two parties in a secure and transparent manner. It comprises blocks that are linked together using cryptographic algorithms, forming a chain of transactions that cannot be altered or deleted. B. Brief history of blockchain technology The first blockchain was introduced in 2008 as the technology behind Bitcoin, a digital currency. Since then, blockchain has evolved to encompass various use cases such as smart contracts, supply chain management, and identity verification. C. Importance of blockchai
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